In which cycles do non-gaseous nutrients such as phosphorous move?
a. atmospheric cycles
b. global cycles
c. water cycles
d. sedimentary cycles
e. plant-animal cycles
ANSWER: d
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Dr. Asbjorn Folling discovered that the blood of children affected by PKU reacted with ferric chloride to produce a green color indicating the presence of phenylalanine
a. True b. False Indicate whether the statement is true or false
A plant cell with three sets of chromosomes has a ploidy that is
a. haploid. b. diploid. c. triploid. d. tetraploid. e. hexaploid.
Which of the following is the correct order of the stages of mitotoc cell cycle (starting with Interphase (Gap-1)?
a) Interphase (Gap-1), S phase, Gap-2, Metaphase, Prophase, Telophase, Anaphase, Cytokenesis b) Interphase (Gap-1), Cytokenesis, S phase, Gap-2, Metaphase, Prophase, Telophase, Anaphase c) Interphase (Gap-1), S phase, Gap-2, Prophase, Metaphase, Anaphase, Telophase, Cytokenesis d) Interphase (Gap-1), Prophase, Telophase, Cytokenesis, S phase, Gap-2, Metaphase, Anaphase e) Interphase (Gap-1), Prophase, Metaphase, Anaphase, Telophase, Cytokenesis, S phase, Gap-2
Probes used for detecting genetic sequences are frequently composed of
A) agarose. B) synthetic nucleic acids and labeled conjugates, such as fluorescent dyes. C) restriction enzymes. D) silicon chips. E) nitrocellulose.